CN207689841U - Customer terminal equipment for network system time synchronization - Google Patents
Customer terminal equipment for network system time synchronization Download PDFInfo
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- CN207689841U CN207689841U CN201721629504.5U CN201721629504U CN207689841U CN 207689841 U CN207689841 U CN 207689841U CN 201721629504 U CN201721629504 U CN 201721629504U CN 207689841 U CN207689841 U CN 207689841U
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- network system
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- programmable logic
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Abstract
The utility model discloses the customer terminal equipments for network system time synchronization, it is related to technical field of power communication, including supply unit, processing unit, mobile communications device and time service device, time service device includes the clock source for generating time signal and the programmable logic device for forwarding time signal, clock source is connect with programmable logic device, programmable logic device is connect with the application terminal in network system, supply unit respectively with processing unit, mobile communications device is connected with programmable logic device, processing unit is connect with mobile communications device and programmable logic device respectively, mobile communications device is connected with programmable logic device；By introducing time service device; high-precision time signal is generated using clock source, and time signal is transmitted to application terminal to reach time synchronization, to promote time service performance by programmable logic device; finally while transmission data, output time signal meets the needs of differential protection business.
Description
Technical field
The utility model is related to technical field of power communication, more particularly to a kind of visitor for network system time synchronization
Family terminal device.
Background technology
With the fast development of technology of Internet of things, customer terminal equipment (the Customer Premise in intelligent grid
Equipment, CPE) it is widely used in real-tune TT ＆ C, production management and crash analysis, the information exchange between customer terminal equipment
All to time synchronization, more stringent requirements are proposed with communication.
Customer terminal equipment is by the mobile communications device of operators communication system support into row clock in traditional technology
It is synchronous, but the network delay of operators communication system and bandwidth are related to network load, when network load is big, when extend bandwidth
Low, when network load is light, the small bandwidth of time delay is high；Operators communication system is since there are the competitiveness of resource, processing nodes simultaneously
It is more and easily interfered by environmental factor, customer terminal equipment when extend to bandwidth and cannot be effectively ensured.
Utility model content
Based on the above issues, the utility model provides a kind of customer terminal equipment for network system time synchronization,
To realize to the accurate time service in application terminal in network system.
A kind of customer terminal equipment for network system time synchronization, including electricity are provided in the utility model embodiment
Source device, processing unit, mobile communications device and time service device；
The time service device includes clock source for generating time signal and for forwarding compiling for the time signal
Journey logical device, the clock source are connect with the programmable logic device, in the programmable logic device and network system
Application terminal connection；
The supply unit connects with the processing unit, the mobile communications device and the programmable logic device respectively
It connects；
The processing unit is connect with the mobile communications device and the programmable logic device respectively；
The mobile communications device is connected with the programmable logic device.
In one embodiment, the clock source is crystal oscillator；In the present embodiment, extremely low using crystal oscillator
Phase noise, high frequency-temperature stability and the advantages that high reliability, high-precision time service letter can be generated
Number, to carry out time service to application terminal.
In one embodiment, the programmable logic device is fpga chip；In the present embodiment, pass through fpga chip
Transmission data and time signal can forward time service clock signal to meet the needs of differential protection business while transmission data,
Reduce product design volume, reduces cost.
Optionally, the fpga chip is equipped with SPI interface, UART interface, serial line interface and I/O interfaces；
The fpga chip is connect by the SPI interface with the mobile communications device；
The fpga chip is connect by the UART interface with the processing unit；
The fpga chip is connect by the serial line interface or the I/O interfaces with the application terminal.
In one embodiment, the mobile communications device is TD-LTE modules；In the present embodiment, it is covered based on operator
The extensive TD-LTE communication technologys are covered, comprehensive operators communication system can will be received by TD-LTE modules in real time and send
Related data and network time signal.
In one embodiment, the TD-LTE modules are equipped with radio frequency interface and SIM card slots for connecting antenna.
In one embodiment, the processing unit is microcontroller, and the microcontroller is equipped with USB interface, the microcontroller
It is connect with the mobile communications device by the USB interface.
Optionally, further include hub, described hub one end connects the USB interface, and the hub other end connects
Connect the mobile communications device.
In one embodiment, further include real-time clock, the microcontroller is equipped with I2C interface, and the microcontroller passes through institute
I2C interface is stated to connect with the real-time clock.
In one embodiment, further include display device, the microcontroller is equipped with GPIO interface, and the microcontroller passes through institute
GPIO interface is stated to connect with the display device.
A technical solution in above-mentioned technical proposal has the following advantages that and advantageous effect：
It is used for the customer terminal equipment of network system time synchronization in the utility model, by introducing time service device, utilizes
Clock source in time service device generates high-precision time signal, and high-precision time signal is passed through may be programmed in time service device
Logical device is transmitted to the application terminal in network system to reach time synchronization；Time service is promoted by increasing time service device
Can, finally while transmission data, output time service clock signal meets the needs of differential protection business.
Description of the drawings
Fig. 1 is that the first structure of the customer terminal equipment for network system time synchronization in the utility model embodiment is shown
It is intended to；
Fig. 2 is that the second structure of the customer terminal equipment for network system time synchronization in the utility model embodiment is shown
It is intended to.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, by the following examples, it and ties
Attached drawing is closed, the customer terminal equipment for network system time synchronization of the utility model is further elaborated.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element may be simultaneously present centering elements.On the contrary, when element is connect referred to as " direct " with another element, do not deposit
In intermediary element.It should be appreciated that unless otherwise defined, all of technologies and scientific terms used here by the article and belong to this practicality
The normally understood meaning of novel those skilled in the art is identical.Herein in the used in the description of the utility model
Term be intended merely to description specific embodiment, be not intended to limitation the utility model.
A kind of customer terminal equipment for network system time synchronization, such as Fig. 1 are provided in the utility model embodiment
It is shown, including supply unit 10, processing unit 20, mobile communications device 30 and time service device 40；Time service device 40 includes being used for
The clock source 410 for generating time signal and programmable logic device 420 for forwarding time signal, clock source 410 with can compile
Journey logical device 420 connects, and programmable logic device 420 is connect with the application terminal 50 in network system；
Supply unit 10 is connect with processing unit 20, mobile communications device 30 and programmable logic device 420 respectively；Place
Reason device 20 is connect with mobile communications device 30 and programmable logic device 420 respectively；Mobile communications device 30 is patrolled with programmable
Device 420 is collected to connect.
In the present embodiment, operation principle is as follows：Supply unit 10 respectively with processing unit 20, mobile communications device 30
It powers with programmable logic device 420；Mobile communications device 30 sends out the network time signal obtained from operators communication system
Programmable logic device 420 is given, programmable logic device 420 is transmitted to clock source 410, and clock source 410 is according to network time
Signal and its oscillation mechanism generate high-precision time signal, and time signal are sent to programmable logic device 420, can
Time signal is transmitted to the application terminal 50 in network system by programmed logic device 420, to realize time synchronization.
It should be noted that being used for the customer terminal equipment of network system time synchronization in the utility model, it is also equipped with logical
Letter ability, i.e. mobile communications device 30 obtain related data from operators communication system, which is used in network system
Application terminal 50, which is sent to processing unit 20 by mobile communications device 30, and is transmitted to through processing unit 20
Programmable logic device 420 is sent to the application terminal 50 in network system together with time signal.
In one embodiment, the clock source 410 in time service device 40 has high-precision punctual function, when time service device 40 not
When getting network time signal from mobile communications device 30, i.e., when mobile communications device 30 cannot eat dishes without rice or wine to take, at this point, clock source
410 start high-precision punctual function, generate high-precision time signal, and are 50 time service of application terminal in network system.
Inventor has found in traditional technology that time unification precision is one of the key index of intelligent grid performance boost, special
Each equipment utilization operators communication system when not being related to the business such as differential protection etc., measuring power angle, and in network system generates
Time delay error it is larger, cannot be satisfied Time synchronization technique as shown in Table 1 requirement.
Table 1：The requirement of power grid time simultaneous techniques
And the customer terminal equipment based on network system time synchronization provided in the embodiment of the present invention, by introducing time service
Device 40 generates high-precision time signal using the clock source 410 in time service device 40, and by high-precision time signal by awarding
When device 40 in programmable logic device 420, the application terminal 50 being transmitted in network system is to reach time synchronization；Pass through
Increase time service device 40 and promote time service performance, finally while transmission data, output time service clock signal meets differential protection
The demand of business.
In one embodiment, clock source 410 is crystal oscillator.
In the present embodiment, due to needing to generate high-precision time signal, crystal oscillator need to have high stable
The advantages that property, extremely low phase noise, high frequency-temperature stability and high reliability, such as EPSON (Epson)
The programmable high-precision of company's research and development has source crystal oscillator (model：SG-8101CA).
As described above, high-precision time signal is produced using crystal oscillator, to carry out time service to application terminal 50.
In one embodiment, programmable logic device 420 is FPGA (Field-Programmable Gate
Array, field programmable gate array) chip.
Wherein, FPGA is to be based on PAL (Programmable Array Logic, programmable logic array), GAL
(generic array logic, Universal Array Logic), CPLD (Complex Programmable Logic Device, it is multiple
Miscellaneous programmable logic device) etc. programmable logic device further develop.
In the present embodiment, fpga chip receives network time signal from operators communication system, and is transmitted to clock source
410；Meanwhile fpga chip receives the time signal that clock source 410 generates, and time signal is transmitted to answering in network system
With terminal 50.
In addition, fpga chip is additionally operable to the related data of receiving and processing device 20, and by the related data and time signal
It is sent to the application terminal 50 in network system together.
As described above, by fpga chip transmission data and time signal, it can be while transmission data, when forwarding time service
Clock signal meets the needs of differential protection business, reduces product design volume, reduces cost.
In one embodiment, as shown in Fig. 2, fpga chip is equipped with SPI interface (Serial Peripheral
Interface, Serial Peripheral Interface (SPI)), UART interface (Universal Asynchronous Receiver-Transmitter,
Universal asynchronous receiving-transmitting interface), serial line interface and I/O interfaces (Input/Output, input/output interface)；Wherein, fpga chip
It is connect with mobile communications device 30 by SPI interface；FPGA chips are connect by UART interface with processing unit 20；FPGA cores
Piece is connect by serial line interface or I/O interfaces with application terminal 50.
In the present embodiment, fpga chip obtains the network time signal that mobile communications device 30 is sent by SPI interface,
And network time signal is transmitted to clock source 410.
In the present embodiment, fpga chip obtains related data by UART interface from processing unit 20, and by the correlation
Data are sent to the application terminal 50 in network system by serial line interface or I/O interfaces.
In addition, clock source 410 generates high-precision time signal, time signal is forwarded by fpga chip, and by serial
Interface or I/O interfaces are sent to application terminal 50.
As described above, property of the fpga chip according to related data and time signal, is arranged different types of interface, to
Improve the matching degree of fpga chip and different device.
In one embodiment, time service device 40 further includes flash memory and memory, and flash memory and memory connect with FPGA chips respectively
It connects；Wherein, flash memory is used to preserve the setting information of fpga chip, and memory is used to temporarily store the operational data in FPGA chips,
And the data exchanged with external memories such as hard disks.
In one embodiment, as shown in Fig. 2, mobile communications device 30 is TD-LTE (Time Division Long
Term, time-division long term evolution) module.
Optionally, TD-LTE modules are equipped with radio frequency interface and SIM card slot 320 for connecting antenna 310.
In the present embodiment, it is based on operator and covers the extensive TD-LTE communication technologys, comprehensive can will lead in real time
It crosses TD-LTE modules and receives the related data and network time signal that operators communication system is sent.
In one embodiment, as shown in Fig. 2, processing unit 20 is microcontroller, microcontroller is equipped with USB (Universal
Serial Bus, universal serial bus), microcontroller is connect by USB interface with mobile communications device 30；In the present embodiment,
Microcontroller obtains related data by USB interface from mobile communications device 30, and the related data is transmitted to time service device.
Optionally, customer terminal equipment further includes hub 70, and 70 one end of hub connects USB interface, and hub 70 is another
One end connects mobile communications device；In the present embodiment, by introducing hub 70, USB interface quantity is increased, convenient for that can have
More devices are connect with processing unit 20.
Optionally, USB interface is USB2.0 interfaces.
In one embodiment, as shown in Fig. 2, further including real-time clock 60, microcontroller is equipped with I2C (Inter-
Integrated Circuit, internal integrated circuit bus) interface, microcontroller connect by I2C interface with real-time clock 60.
In the present embodiment, real-time clock 60 generates internal time signal, and is sent to internal time signal by processing unit 20 and awards
When device 40, finally, clock source 410 generates high-precision according to internal time signal, network time signal and its oscillation mechanism
Time signal；Multiple signal sources are obtained by real-time clock 60 and mobile communications device 30, more accurately time service letter can be obtained
Number.
In one embodiment, as shown in Fig. 2, further including display device 80, microcontroller is equipped with GPIO interface (General
Purpose Input Output, universal input/output interface), microcontroller is connect by GPIO interface with display device 80；
In the present embodiment, display device 80 is used for the data information of display processing unit 20, is carried out convenient for user and customer terminal equipment
Interaction can be used family that suitable synchronization mechanism, i.e., different types of time signal, such as 1PPS pulse time signals is arranged
(1pulse per second, 1 time/second), IRIG-B codes time signal (serial time B codes) or 1PPS+TOD time signals
(Time of Day, temporal information).
In one embodiment, conversion circuit built in supply unit 10, the DC voltage that power supply adaptor is provided are converted
For the voltage of different amplitudes, to meet the need of processing unit 20, mobile communications device 30 and time service device 40 to supply voltage
It asks.
Optionally, the amplitude for the DC voltage that voltage adapter is provided is 24V.
Optionally, supply unit 10 is equipped with I/O interfaces and serial line interface, and supply unit 10 passes through I/O interfaces and serial interface
Mouth is connect with processing unit 20；In the present embodiment, supply unit 10 is also equipped with UPS (Uninterruptible Power
Supply, uninterrupted power supply) function, I/O interfaces and serial line interface return data can be passed through when having a power failure extremely.
In one embodiment, processing unit 20 is additionally provided with the RJ45 interfaces for data transmission.
In another embodiment, processing unit 20 is additionally provided with RJ45 interfaces and RS232 interface for debugging.
In one embodiment, customer terminal equipment further includes Double Data Rate synchronous DRAM (DDR), consolidates
State hard disk and serial flash, Double Data Rate synchronous DRAM, solid state disk and serial flash respectively with processing unit
20 connections.
Optionally, Double Data Rate synchronous DRAM is DDR2 memories.
Optionally, solid state disk is equipped with SATA (Serial Advanced Technology Attachment, serial height
Grade technology) interface, solid state disk connect by SATA interface with processing unit 20.
In one embodiment, customer terminal equipment further includes the chip for monitoring SCM program operating status, that is, is guarded the gate
Dog (watch dog) chip, watchdog chip are connect with processing unit 20.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of customer terminal equipment for network system time synchronization, which is characterized in that including supply unit, processing dress
It sets, mobile communications device and time service device；
The time service device includes clock source for generating time signal and for forwarding the programmable of the time signal to patrol
Device is collected, the clock source is connect with the programmable logic device, the programmable logic device and answering in network system
It is connected with terminal；
The supply unit is connect with the processing unit, the mobile communications device and the programmable logic device respectively；
The processing unit is connect with the mobile communications device and the programmable logic device respectively；
The mobile communications device is connected with the programmable logic device.
2. the customer terminal equipment according to claim 1 for network system time synchronization, which is characterized in that when described
Zhong Yuanwei crystal oscillators.
3. the customer terminal equipment according to claim 2 for network system time synchronization, which is characterized in that it is described can
Programmed logic device is fpga chip.
4. the customer terminal equipment according to claim 3 for network system time synchronization, which is characterized in that described
Fpga chip is equipped with SPI interface, UART interface, serial line interface and I/O interfaces；
The fpga chip is connect by the SPI interface with the mobile communications device；
The fpga chip is connect by the UART interface with the processing unit；
The fpga chip is connect by the serial line interface or the I/O interfaces with the application terminal.
5. according to any customer terminal equipments for network system time synchronization of claim 1-4, which is characterized in that
The mobile communications device is TD-LTE modules.
6. the customer terminal equipment according to claim 5 for network system time synchronization, which is characterized in that described
TD-LTE modules are equipped with radio frequency interface and SIM card slot for connecting antenna.
7. according to any customer terminal equipments for network system time synchronization of claim 1-4, which is characterized in that
The processing unit is microcontroller, and the microcontroller is equipped with USB interface, and the microcontroller passes through the USB interface and the shifting
Dynamic communication device connection.
8. the customer terminal equipment according to claim 7 for network system time synchronization, which is characterized in that further include
Hub, described hub one end connect the USB interface, and the hub other end connects the mobile communications device.
9. the customer terminal equipment according to claim 7 for network system time synchronization, which is characterized in that further include
Real-time clock, the microcontroller are equipped with I2C interface, and the microcontroller is connect by the I2C interface with the real-time clock.
10. the customer terminal equipment according to claim 7 for network system time synchronization, which is characterized in that also wrap
Display device is included, the microcontroller is equipped with GPIO interface, and the microcontroller is connected by the GPIO interface and the display device
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629504.5U CN207689841U (en) | 2017-11-29 | 2017-11-29 | Customer terminal equipment for network system time synchronization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721629504.5U CN207689841U (en) | 2017-11-29 | 2017-11-29 | Customer terminal equipment for network system time synchronization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689841U true CN207689841U (en) | 2018-08-03 |
Family
ID=62999515
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721629504.5U Expired - Fee Related CN207689841U (en) | 2017-11-29 | 2017-11-29 | Customer terminal equipment for network system time synchronization |
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| CN (1) | CN207689841U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115220334A (en) * | 2022-09-20 | 2022-10-21 | 成都金诺信高科技有限公司 | Second pulse output device with high-precision time delay adjustment |
-
2017
- 2017-11-29 CN CN201721629504.5U patent/CN207689841U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115220334A (en) * | 2022-09-20 | 2022-10-21 | 成都金诺信高科技有限公司 | Second pulse output device with high-precision time delay adjustment |
| CN115220334B (en) * | 2022-09-20 | 2022-12-27 | 成都金诺信高科技有限公司 | Second pulse output device with high-precision time delay adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20181129 |